CN204061075U - A kind of air-driven hydraulic pump - Google Patents
A kind of air-driven hydraulic pump Download PDFInfo
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- CN204061075U CN204061075U CN201420407166.0U CN201420407166U CN204061075U CN 204061075 U CN204061075 U CN 204061075U CN 201420407166 U CN201420407166 U CN 201420407166U CN 204061075 U CN204061075 U CN 204061075U
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Abstract
The utility model proposes a kind of air-driven hydraulic pump, comprise the first one-way valve, second one-way valve, the pneumatic pump housing, hydraulic pump body and piston rod, hydraulic pump body and the pneumatic pump housing are connected to form first piston hole, Pneumatic valve is provided with in the pneumatic pump housing, gas-entered passageway and outlet passageway, Pneumatic valve is opened gas-entered passageway and outlet passageway or is closed respectively, the suction port of gas-entered passageway is arranged on the pneumatic pump housing, the air outlet hole of outlet passageway arranges on the 3rd one-way valve seat, gas-entered passageway and outlet passageway are respectively through intersecting after Pneumatic valve to first piston hole in the right side of piston body, air outlet is provided with air silencer.The back and forth movement reliably by the high frequency of air pressure and hydraulic piston, realize sucking and the do action of discharging oil, structure is simple, and volume is little.
Description
Technical field
The utility model relates to a kind of pump, particularly relates to a kind of air-driven hydraulic pump.
Background technique
Chinese patent (CN201250767Y) discloses a kind of air-driven hydraulic pump, comprise valve body back cover portion, piston, cylinder barrel, spring, small piston rod, guide sleeve, back-up ring, seal ring, high pressure oil exports body, oil suction body, transition connector, flange, nut, described valve body back cover portion comprises silencing apparatus, silencing apparatus, reversing bar, spool, guide sleeve, gas source air inlet, spool, valve pocket, plug screw, valve body back cover portion offers gas source air inlet, spool is arranged in valve pocket, plug screw is arranged in the hole of establishing in advance, the axis of plug screw and spool point-blank, reversing bar is arranged in the hole that presets, spool is arranged in guide sleeve, silencing apparatus, silencing apparatus is disposed thereon, piston is installed in cylinder barrel, small piston rod seized piston, spring is around on small piston rod, guide sleeve, back-up ring, seal ring is enclosed within small piston rod in turn, flange is arranged in transition connecting rod, high pressure oil exports body, oil suction body UNICOM.
1, the selector valve that valve body back cover portion is arranged drives piston rod oil suction and fuel-displaced, wherein, inlet charge, selector valve commutates, gas push piston driving small piston rod moves downward, piston cavity of resorption air is by external expanding channels selector valve at present, and the air realized in cavity of resorption is discharged and inflation promotion piston driving small piston rod moves upward.So just make pneumatic hydraulic pump structure more complicated, volume becomes large simultaneously.
2, not used time air-driven hydraulic pump a period of time, oil residual in the passage that flange and small piston rod run mutually there will be solidification phenomenon, at this moment oil suction body oil suction, oil cannot be entered in this passage by the one-way valve be arranged on oil suction body, brings very large inconvenience to user.
Model utility content
In order to solve the problem, the utility model provides a kind of air-driven hydraulic pump.
The technical solution adopted in the utility model is as follows:
A kind of air-driven hydraulic pump, comprise the first one-way valve, the second one-way valve, the pneumatic pump housing, hydraulic pump body and piston rod, described hydraulic pump body and the described pneumatic pump housing are connected to form first piston hole,
Described hydraulic pump body axis is provided with the second piston hole, the axis of described hydraulic pump body is also provided with filler opening, described filler opening and described second piston hole are connected to form oil inlet passage, described hydraulic pump body is horizontally arranged with oil outlet, described oil outlet and described second piston hole are connected to form oil discharge passage, described oil inlet passage is connected with described oil discharge passage is vertical, described filler opening has been threaded inlet connector tube, described oil outlet has been threaded outlet pipe connection, described first one-way valve is fixed in described filler opening by described inlet connector tube, described second one-way valve is fixed in described oil outlet by described outlet pipe connection,
The stage casing of described piston rod is socketed with the piston body coordinated with described first piston hole, described first piston hole is separated to form the first air cavity and the second air cavity by piston body, it is described first air cavity between described piston body and described hydraulic pump body, it is described second air cavity between described piston body and the described pneumatic pump housing, left section of described piston rod in described second piston hole, described piston rod is also socketed with spring outward, and described spring is arranged in described first air cavity;
The described pneumatic pump housing is also provided with the 3rd one-way valve preventing right section of described piston rod from skidding off, described 3rd one-way valve is arranged on described 3rd one-way valve seat, and described 3rd one-way valve seat is arranged on the described pneumatic pump housing;
Pneumatic valve, gas-entered passageway and outlet passageway is provided with in the described pneumatic pump housing, right section of described piston rod connects described 3rd one-way valve through described Pneumatic valve, described Pneumatic valve is opened described gas-entered passageway and described outlet passageway or is closed respectively, the suction port of described gas-entered passageway is arranged on the described pneumatic pump housing, the air outlet of described outlet passageway arranges on described 3rd one-way valve seat, described gas-entered passageway and described outlet passageway are respectively through intersecting after described Pneumatic valve in described second air cavity, and described air outlet is provided with air silencer;
Described hydraulic pump body and the described pneumatic pump housing are bolted, described bolt is through in the described pneumatic pump housing to described hydraulic pump body, described bolt coordinates with described pneumatic pump body space, the described pneumatic pump housing is provided with the second air outlet hole, described second air outlet hole through described bolt and the described pneumatic pump housing gap to described first air cavity interior form the first air cavity enter outlet passageway.
Above-mentioned air-driven hydraulic pump, wherein, described hydraulic pump body and the described pneumatic pump housing are fixed by four above-mentioned bolts.
Above-mentioned air-driven hydraulic pump, wherein, described hydraulic pump body side is also provided with filler opening, and described filler opening forms lubrication channel through in described hydraulic pump body to described second piston hole.
Above-mentioned air-driven hydraulic pump, wherein, described second one-way valve comprises steel ball and spring, described outlet pipe connection axis is provided with the hole of placing described spring, described spring is placed in described hole, described steel ball is arranged between described spring and described oil outlet, is also provided with annulus pad between described steel ball and described oil outlet.
Preferably, described annulus pad is the annulus pad that converted steel supports.
Above-mentioned air-driven hydraulic pump, wherein, the 3rd piston hole that described selector valve comprises pneumatic moushroom valve core, spring and coordinates with described pneumatic moushroom valve core, described selector valve is socketed spring outward and is arranged in the 3rd piston hole, the outer sheathed described pneumatic moushroom valve core of right section of described piston rod.
The utility model compared with the existing technology, has the following advantages and beneficial effect:
The utility model air-driven hydraulic pump, the back and forth movement reliably by the high frequency of air pressure and hydraulic piston, realizes sucking and the do action of discharging oil; Utilize the area ratio of air slide and hydraulic piston that air pressure will be driven to change high pressure oil pressure, adopt selector valve to realize gas purging, do not need external pipe to be exhausted gas simultaneously, make structure more simple, smaller volume.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of air-driven hydraulic pump described in the utility model.
In figure: 1 is hydraulic pump body, 2 is the pneumatic pump housing, 3 is the first air cavity, 4 is the second air cavity, 5 is suction port, 6 is gas-entered passageway, 7 is outlet passageway, 8 is air outlet, 9 is the 3rd one-way valve seat, 10 is air silencer, 11 is spring stop, 12 is spring, 13 is Pneumatic unidirectional spool, 14 is the 3rd one-way valve, 15 is piston body, 16 is piston rod, 17 is spring, 18 is the second one-way valve, 19 is outlet pipe connection, 20 is spring, 21 is steel ball, 22 is oil outlet, 23 is oil discharge passage, 24 is filler opening, 25 is oil inlet passage, 26 is inlet connector tube, 27 is the first one-way valve, 28 is the second piston hole, 29 is first piston hole, 30 is pneumatic moushroom valve core, 31 is the 3rd piston hole, 32 is Pneumatic valve, 33 is air silencer fitting seat, 34 is spring.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Shown in Figure 1, a kind of air-driven hydraulic pump, comprises the first one-way valve 27, second one-way valve 18, the pneumatic pump housing 2, hydraulic pump body 1 and piston rod 16, and hydraulic pump body 1 and the pneumatic pump housing 2 are connected to form first piston hole 29,
Hydraulic pump body 1 axis is provided with the second piston hole 28, the axis of hydraulic pump body 1 is also provided with filler opening 24, filler opening 24 and the second piston hole 28 are connected to form oil inlet passage 25, hydraulic pump body 1 is horizontally arranged with oil outlet 22, oil outlet 22 and the second piston hole 28 are connected to form oil discharge passage 23, oil inlet passage 25 is connected with oil discharge passage 23 is vertical, filler opening 24 has been threaded inlet connector tube 26, oil outlet 22 has been threaded outlet pipe connection 19, first one-way valve 27 is fixed in filler opening 24 by inlet connector tube 26, second one-way valve 18 is fixed in oil outlet 22 by outlet pipe connection 19,
The stage casing of piston rod 16 is socketed with the piston body 15 coordinated with first piston hole 29, first piston hole 29 is separated to form the first air cavity 3 and the second air cavity 4 by piston body 15, it is the first air cavity 3 between piston body 15 and hydraulic pump body 1, it is the second air cavity 4 between piston body 15 and the pneumatic pump housing 2, left section of piston rod 16 in the second piston hole 28, piston rod 16 is outer is also socketed with spring 17, and spring 17 is arranged in the first air cavity 3;
The pneumatic pump housing 2 being also provided with the 3rd one-way valve the 14, three one-way valve 14 preventing right section of piston rod 16 from skidding off is arranged on the 3rd one-way valve seat 9, and the 3rd one-way valve seat 9 is arranged on the pneumatic pump housing 2;
Pneumatic valve 32, gas-entered passageway 6 and outlet passageway 7 is provided with in the pneumatic pump housing 2, right section of piston rod 16 connects the 3rd one-way valve 14 through Pneumatic valve 32, Pneumatic valve 32 is opened gas-entered passageway 6 and outlet passageway 7 or is closed respectively, the suction port 5 of gas-entered passageway 6 is arranged on the pneumatic pump housing 2, the air outlet 8 of outlet passageway 7 arranges on the 3rd one-way valve seat 9, gas-entered passageway 6 and outlet passageway 7 are respectively through intersecting after Pneumatic valve 32 in the second air cavity 28, and air outlet 8 is provided with air silencer 10;
Hydraulic pump body 1 and the pneumatic pump housing 2 are bolted, bolt is through in the pneumatic pump housing 2 to hydraulic pump body 1, bolt and the pneumatic pump housing 2 Spielpassung, the pneumatic pump housing 2 is provided with the second air outlet hole, the second air outlet hole through gap to the first air cavity 3 of bolt and the pneumatic pump housing interior form the first air cavity enter outlet passageway.
Further, hydraulic pump body 1 and the pneumatic pump housing 2 are fixed by four above-mentioned bolts.
Instead of external passage of the prior art by arranging above-mentioned bolt, when piston body moves to left, the air in the first air cavity is discharged from the second air outlet hole through bolt; By to the inflation of this second air outlet hole, make the first gas interacvity air-filling, promote piston body and drive piston rod to move to right, structure is more simple, and smaller volume is easy to use.
As to further improvement of the present invention, Pneumatic valve 32 comprises pneumatic moushroom valve core 30, spring 34 and coordinates the 3rd piston hole 31 of 30 with pneumatic moushroom valve core, being socketed with spring 34 outside Pneumatic valve 32 is arranged in the 3rd piston hole 31,3rd one-way valve seat 9 is provided with air outlet 8, air outlet 8 forms outlet passageway 7 through in the 3rd piston hole 31 to the second air cavity 4, the pneumatic pump housing 2 is provided with suction port 5, and suction port 5 forms gas-entered passageway 6 through in the 3rd piston hole 31 to the second air cavity 4.
As to further improvement of the present invention, side is also provided with filler opening (not shown) to hydraulic pump body 1, and filler opening (not shown) forms lubrication channel through in hydraulic pump body 1 to the second piston hole 28.
Air-driven hydraulic pump a period of time, when not using, the oil in the second piston hole there will be solidification phenomenon, made oil can not promote the first one-way valve from inlet connector tube and moved in the second piston hole.Now, inject oil to the second piston hole by the filler opening of hydraulic pump body side, after soaking a period of time, because oil is to the lubrication of the second piston hole, the oil realizing inlet connector tube promotes in the second one-way valve to the second piston hole, then goes out from oil outlet.
As to further improvement of the present invention, second one-way valve 18 comprises steel ball 21 and spring 20, outlet pipe connection 19 axis is provided with the hole of placing spring 20, spring 20 is placed in this hole, steel ball 21 is arranged between spring 20 and oil outlet 22, is also provided with annulus pad between steel ball 21 and oil outlet 22.
Oil from inlet connector tube through the first one-way valve and the second piston hole to oil outlet, now, oil promotes steel ball and moves along telescopic spring, enables oil flow out to outlet pipe connection from oil outlet.Steel ball, due to the elastic force of spring, can clash into oil outlet, clash into for a long time, and oil outlet and steel ball can be made to damage, and steel ball can not be closed oil outlet, and now oil pressure can not well keep.By arranging annulus pad, available protecting oil outlet and steel ball, avoid steel ball to clash into oil outlet.
Further, annulus pad is the annulus pad that high hardness material is made.
Preferably, annulus pad is the annulus pad that converted steel supports.
As to further improvement of the present invention, the 3rd one-way valve 14 comprises Pneumatic unidirectional spool 13, spring 12 and spring stop 11, is socketed Pneumatic check valve core 13 outside one end of spring 12, outside the other end socket spring stop 11 of spring 12.
Right section of piston rod is withstood Pneumatic check valve, due to the effect of spring force, piston rod can not be passed from Pneumatic valve, by arranging the 3rd one-way valve, prevent piston rod from passing from Pneumatic valve, cause piston rod to-and-fro motion, cause piston rod to carry out oil suction or force feed to oil.
Further, also comprise air silencer fitting seat 33, air silencer fitting seat 33 is socketed and is arranged on air-driven hydraulic pump 2 outside Pneumatic valve 32 and the 3rd one-way valve seat 9, air silencer 10 be arranged on air silencer fitting seat 33 with relief opening 8 place.
The working principle of air-driven hydraulic pump of the present invention:
F
1=P
gas× A
1, F
2=P
oil× A
2, wherein A1 is the cross-section area of piston body, A
2be the cross-section area of the second piston hole (i.e. piston rod), pressure ratio=A
1: A
2=C (constant), P
gasbe the air pressure in the second air cavity, P
oilbe the oil pressure in the second piston hole,
Step one: suction port 5 is inflated, gas promotes piston body 15 and is moved to the left, due to P in the 3rd piston hole 31 to the second air cavity 4
oil< C × P
gas, then F
1< F
2, piston rod 16 is moved to left, (suction port is inflated always), the first one-way valve 27 is closed, and the second one-way valve 18 is opened, and the oil pressure in the second piston hole 28 is gone out oil outlet.Now, the air in the first air cavity 3 is gone out from bolt hole (gap that bolt coordinates with the pneumatic pump housing) to the second air outlet hole;
Step 2: when piston rod 16 is moved to the left always, right section of piston rod 16 is skidded off (now outlet passageway blocked by pneumatic moushroom valve 30 core) in pneumatic moushroom valve core 30, the air of suction port 5 is passed through in the 3rd piston 31 hole in pneumatic moushroom valve core 30, after being full of gas in 3rd piston hole 31, pneumatic moushroom valve core 30 is moved to the left, make pneumatic moushroom valve core 30 block suction port 5, outlet passageway 7 opened by pneumatic moushroom valve core 30 simultaneously, and the gas of suction port 14 is discharged through the 3rd one-way valve 14.
Step 3: now because the second air cavity 4 communicates with outside, P
gas,=0, F
1=0, the spring-force driven dual of spring 17 makes piston rod 16 move to right, and the air that piston rod 16 is closed in pneumatic moushroom valve core 30 gas-entered passageway 6, second air cavity 4 flows out from outlet passageway 7.Then now, the air in the first air cavity 3 is inflated from bolt hole (gap that bolt coordinates with the pneumatic pump housing) through the second air outlet hole.Meanwhile, the first one-way valve 27 is opened, and the second one-way valve 18 is closed, and hydraulic oil oil suction is in inlet connector tube 26 to the second piston hole 28.Piston rod 16 moves to right LAP, and the spring-force driven dual that pneumatic moushroom valve core 30 is being socketed in pneumatic moushroom valve core outer spring 34 resets to the right, and suction port 5 is opened, and carries out next one circulation.
The utility model air-driven hydraulic pump is according to above-mentioned steps circulation running, the back and forth movement reliably by the high frequency of air pressure and hydraulic piston, realize sucking and the do action of discharging, slowing down close to setting pressure Posterior circle, when reaching setting pressure completely, driving air pressure and oil pressure then to keep pressure F in balancing
1=F
2, i.e. P
oil=C × P
gas.Do not consume driving air pressure completely in the state of the equilibrium, there is not power loss and the oil temperature rising problem of electric oil pump.Even if drive air pressure to interrupt, the second one-way valve 18 of discharge side also can keep oil pressure.During load pressure decompression, rapid response is pressurizeed, keep oil pressure to stablize.Relative to prior art, by external air conduit, pneumatic moushroom valve core is moved to right, make structure more simple, smaller volume.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. an air-driven hydraulic pump, comprise the first one-way valve (27), the second one-way valve (18), the pneumatic pump housing (2), hydraulic pump body (1) and piston rod (16), described hydraulic pump body (1) and the described pneumatic pump housing (2) are connected to form first piston hole (29), it is characterized in that
Described hydraulic pump body (1) axis is provided with the second piston hole (28), the axis of described hydraulic pump body (1) is also provided with filler opening (24), described filler opening (24) and described second piston hole (28) are connected to form oil inlet passage (25), described hydraulic pump body (1) is horizontally arranged with oil outlet (22), described oil outlet (22) and described second piston hole (28) are connected to form oil discharge passage (23), described oil inlet passage (25) is connected with described oil discharge passage (23) is vertical, described filler opening (24) has been threaded inlet connector tube (26), described oil outlet (22) has been threaded outlet pipe connection (19), described first one-way valve (27) is fixed in described filler opening (24) by described inlet connector tube (26), described second one-way valve (18) is fixed in described oil outlet (22) by described outlet pipe connection (19),
The stage casing of described piston rod (16) is socketed with the piston body (15) coordinated with described first piston hole (29), described first piston hole (29) is separated to form the first air cavity (3) and the second air cavity (4) by piston body (15), it is described first air cavity (3) between described piston body (15) and described hydraulic pump body (1), it is described second air cavity (4) between described piston body (15) and the described pneumatic pump housing (2), left section of described piston rod (16) in described second piston hole (28), described piston rod (16) is also socketed with spring (17) outward, described spring (17) is arranged in described first air cavity (3),
The described pneumatic pump housing (2) is also provided with the 3rd one-way valve (14) preventing right section of described piston rod (16) from skidding off, described 3rd one-way valve (14) is arranged on described 3rd one-way valve seat (9), and described 3rd one-way valve seat (9) is arranged on the described pneumatic pump housing (2);
Pneumatic valve (32) is provided with in the described pneumatic pump housing (2), gas-entered passageway (6) and outlet passageway (7), right section of described piston rod (16) connects described 3rd one-way valve (14) through described Pneumatic valve (32), described Pneumatic valve (32) is opened described gas-entered passageway (6) and described outlet passageway (7) or is closed respectively, the suction port (5) of described gas-entered passageway (6) is arranged on the described pneumatic pump housing (2), the air outlet (8) of described outlet passageway (7) arranges on described 3rd one-way valve seat (9), described gas-entered passageway (6) and described outlet passageway (7) intersect to described second air cavity (4) respectively through described Pneumatic valve (32) afterwards, described air outlet (8) is provided with air silencer (10),
Described hydraulic pump body (1) and the described pneumatic pump housing (2) are bolted, described bolt is through in the described pneumatic pump housing (2) to described hydraulic pump body (1), described bolt and the described pneumatic pump housing (2) Spielpassung, the described pneumatic pump housing (2) is provided with the second air outlet hole, described second air outlet hole through described bolt and the described pneumatic pump housing gap to described first air cavity (3) interior form the first air cavity (3) enter outlet passageway.
2. air-driven hydraulic pump according to claim 1, it is characterized in that, described hydraulic pump body (1) side is also provided with filler opening, and described filler opening forms lubrication channel through in described hydraulic pump body (1) to described second piston hole (28).
3. air-driven hydraulic pump according to claim 1, it is characterized in that, described second one-way valve (18) comprises steel ball (21) and spring (20), described outlet pipe connection (19) axis is provided with the hole of placing described spring (20), described spring (20) is placed in described hole, described steel ball (21) is arranged between described spring (20) and described oil outlet (22), is also provided with annulus pad between described steel ball (21) and described oil outlet (22).
4. air-driven hydraulic pump according to claim 3, is characterized in that, described annulus pad is the annulus pad that converted steel supports.
5. air-driven hydraulic pump according to claim 1, it is characterized in that, described 3rd one-way valve (14) comprises Pneumatic unidirectional spool (13), spring (12) and spring stop (11), be socketed described Pneumatic unidirectional spool (13) outside one end of described spring (12), the other end of described spring (12) is socketed described spring stop (11) outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420407166.0U CN204061075U (en) | 2014-07-23 | 2014-07-23 | A kind of air-driven hydraulic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420407166.0U CN204061075U (en) | 2014-07-23 | 2014-07-23 | A kind of air-driven hydraulic pump |
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| Publication Number | Publication Date |
|---|---|
| CN204061075U true CN204061075U (en) | 2014-12-31 |
Family
ID=52202604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420407166.0U Active CN204061075U (en) | 2014-07-23 | 2014-07-23 | A kind of air-driven hydraulic pump |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141595A (en) * | 2014-07-23 | 2014-11-12 | 上海帕格液压设备有限公司 | Pneumatic hydraulic pump |
| CN109139581A (en) * | 2018-09-19 | 2019-01-04 | 东莞美商博瑞智能科技有限公司 | A kind of gas source hydraulic press |
-
2014
- 2014-07-23 CN CN201420407166.0U patent/CN204061075U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141595A (en) * | 2014-07-23 | 2014-11-12 | 上海帕格液压设备有限公司 | Pneumatic hydraulic pump |
| CN109139581A (en) * | 2018-09-19 | 2019-01-04 | 东莞美商博瑞智能科技有限公司 | A kind of gas source hydraulic press |
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